Closure device having self-locking pivoted cap



J. EEYERS 2 495 8E3 CLOSURE DEVICE HAVING SELF-LOCKING PIVOTED CAP FiledAug. 20, 1946 v INVENTOR.

JOHN B1: ms

MJMMQ ATTIC! RN EYS Patented Jan. 31, 1950 UNITED STATES TNT OFFICE CLOSURE DEVICE. HAVING SELF-LOCKING PIVQTED CAP 1 Claim.

The present invention relates to the general class of dispensingdevices, and more specifically to an improved cap closure device .forcollapsible dispensing tubes of the portable type, including anattachable nozzle and a pivoted closure for the mouth of the nozzle.

The primary object of the invention is the provision of a closure "ofthistype which may be manufactured in quantities, from plastic and othersuitable materials, at low cost of production; in which the componentparts may readily be assembled to form the completed device; and whichdevice is simple in both construction and operation for controlling theflow of fluent material from the collapsible or flexible dispensingtube.

The device of my invention is particularly adapted for interchangeableuse with the usual screw caps of standardized nipples of the tubescontaining toothpaste, shaving-cream, and similar materials, and it maybe substituted for these customary screw caps. When thus substituted asa permanent fixture for the usual screw cap, the closure of my inventionmay quickly be opened and closed without recourse to the use of theusual detaching and attaching threads of a cap and nipple, therebyeliminating the possibility of distorting the threads and consequentdifiiculty in mounting and dismounting the closure for the tube.

The novel closure of my invention is also applicable for initial andpermanent use with the specific types of collapsible or flexible tubescontaining these fluent materials and possessing the standard screwthreaded nipple.

The invention consists essentially in certain novel combinations andarrangements of parts including and consisting of an attaching nozzlehaving a pivoted arm and closure cap for the mouth of the nozzle,together with means that co-act with the nozzle for temporarilyretaining the cap in open position relative to the mouth of the nozzlewhile the material is being ejected from the tube and dispensed throughthe nozzle, and in other combinations of parts as will hereinafter bemore specifically described and set forth in the appended claims.

In the accompanying drawings I have illustrated a complete example ofthe physical embodiment of my invention wherein the parts are combinedand arranged in accord with modes I have thus far devised for thepractical application of the principles of my invention, but it will beunderstood that changes and alterations may,

mechanical structures, within the scope of my claim, without departingfrom the principles of my invention.

In Figures 1, 2, and 3;, which disclose an em- 1 bodiment of myinvention,

Figure 1 is a top plan view showing the device of my invention attachedto the threaded nipple of a collapsible tube.

Figure 2 is a view in side elevation with the cap closed; and

Figure 3 is a sectional detail view as at line 33 of Fig. l with the capor closure closed, and mounted on the nippleof a conventionalcollapsible dispensing tube.

Referring more in detail to the drawings the closure of my invention isthreaded on the externally threaded nipple I of a standard collapsibleor flexible tube 2 that is adapted to be rolled upwardly from its lowerend toward the nipple, or squeezed to eject the fluent material from themouth of the nipple and through the nozzle 3 when the cap 9 is opened,or removed from over the mouth of the nipple.

The nozzle 3, which is shaped to conform to the nipple I is internallythreaded to conform to the external threads of the nipple, and theinterior bore 5 of the nozzle, through which the fluent material isejected from the nipple, terminates in a neck portion 6 having an outletopening or mouth.

An open center gasket or washer 1, of cork or other suitable material isinterposed between the nozzle and the nipple to prevent waste and toinsure an airtight joint between the nipple and the nozzle, and a secondsealing disk 8, of cork is provided for the same purpose between theclosure cap 9 and the mouth of the nozzle.

The cap 9 is shaped like an inverted cup, and it is designed to slipover the mouth of the nozzle for sealing the closure, and to bewithdrawn therefrom to permit ejection of the fluent material in theshape of a ribbon as usual.

For convenience in controlling the closure cap as it is withdrawn fromor slipped over the mouth of the nozzle, an integral lug I0 is fashionedon the cap where it is readily accessible for the finger or thumb inmanipulating the cap.

The cap 9 is fashioned with a radial arm [8 which projects therefrom andat its outer end the arm 88 of the cap is provided with a perforatedhead l9, and the head is fashioned with a semicircular cam face 20. Apivot pin 2| is passed through the perforated head and mounted in a pairof perforated ears 22 integral with the nozzle, and the nozzle, betweenthese ears, is fashioned with a cam seat 23 for frictional engagementwith the cam face 20, when the cap is uplifted.

Thus, by finger or thumb pressure against the lifting lug l0 the cap maybe lifted from the mouth of the nozzle, on the pin 2| as a pivot, andthe cap and arm are swung to uplifted position as the semicircular camface 20 swings into frictional engagement with the seat 23 of thenozzle. The nozzle is thus uncovered and the cap is swung to positionwhere it is out of the way and does not interfere with the ejection ofthe fluent material from the nozzle.

For remapping the nozzle the friction-held cap and arm are swung downwith the inverted cup 9 closing the nozzle, and held in that position byco-action of the cam faces 20 and 23 of the arm and nozzle respectively.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is:

A closure device for attachment to a threaded outlet of a dispensingtube comprising a housing having an internally threaded opening adaptedto be threadedly received by the dispensing tube outlet, a cylindricalneck portion extending from said housing, a passageway extending throughsaid housing and neck concentric with said neck and communicating withsaid opening for passing material from the dispensing tube, a pair ofspaced ears integrally upstanding from said housing, an am having an endportion thereof received between said ears, said arm end portion betweensaid ears having a slot and a substantially convex cam face adapted tocontact said housing, a circular flange secured to said arm forming aninverted-cup therewith and adapted to fit over said neck portion forclosing said bore, and a pivot pin secured to said ears and extendingthrough said slot, whereby said arm can be pivoted on said pin, andthereby said cup, toward and away from said neck portion and whenpivoted away from said neck portion said arm can be slid on said pivotfor causing said convex cam face to frictionally contact the housingbetween said ears for releasably holding said arm away from said neckportion.

JOHN BEYERS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,509,465 Baya Sept. 23, 19241,702,998 Foltis Feb. 19, 1929 1,794,987 Sebolt Mar. 3, 1931 1,998,373Love Apr. 16, 1935 2,009,761 Calderara July 30, 1935 2,111,186 JenksMar. 15, 1938 2,196,530 Johnson et a1 Apr. 9, 1940

